<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>学生信息管理</title>
  </head>

  <body>
    <div id="app">
      <div>
        <span>姓名:</span>
        <input type="text" />
      </div>
      <div>
        <span>年龄:</span>
        <input type="number" />
      </div>
      <div>
        <span>性别:</span>
        <select>
          <option value="男">男</option>
          <option value="女">女</option>
        </select>
      </div>
      <div>
        <button>添加</button>
        <button>修改</button>
      </div>
      <div>
        <table border="1" cellpadding="10" cellspacing="0">
          <tr>
            <th>序号</th>
            <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
            <th>操作</th>
          </tr>
          <tr v-for="(item,index) in list" :key="item.id">
            <td>{{index+1}}</td>
            <td>{{item.name}}</td>
            <td>{{item.age}}</td>
            <td>{{item.gender}}</td>
            <td>
              <button @click="del(item.id)">删除</button>
              <button @click="edit">编辑</button>
            </td>
          </tr>
        </table>
      </div>
    </div>
    <script src="./vue.js"></script>
    <script>
      const app = new Vue({
        el: '#app',
        data: {
          username: '',
          age: '',
          list: [
            { id: 1, name: 'Tom2', age: 25, gender: '女' },
            { id: 2, name: 'Jone', age: 21, gender: '女' },
            { id: 3, name: '小李', age: 18, gender: '男' }
          ]
        },
        methods: {
          del(id) {
            return (this.list = this.list.filter(item => item.id !== id))
          },
          edit() {}
        }
      })
    </script>
  </body>
</html>
